Secondary Development of AutoCAD Using Data Obtained by VB from Exterior Database

The specialties of Visual Basic,Access and Auto lisp in programming,controlling database and drawing were introduced respectively.To overcome the problem of inadequate professionalism of AutoCAD,the method and key technology which plot the draw on AutoCAD 2004 platform using the data obtained by VB6.0 from the database were studied.The developing through an example of drawing a series of different radius circles based on VB and VBA was also given in detail.The method was proved technically feasible through this instance.And it can be good reference for technicians who intend to develop AutoCAD with VB.